420195021167 has 2 divisors, whose sum is σ = 420195021168. Its totient is φ = 420195021166.

The previous prime is 420195021161. The next prime is 420195021199. The reversal of 420195021167 is 761120591024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420195021167 - 2¹⁰ = 420195020143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420195021167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420195021161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210097510583 + 210097510584.

It is an arithmetic number, because the mean of its divisors is an integer number (210097510584).

Almost surely, 2^420195021167 is an apocalyptic number.

420195021167 is a deficient number, since it is larger than the sum of its proper divisors (1).

420195021167 is an equidigital number, since it uses as much as digits as its factorization.

420195021167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 420195021167 in words is "four hundred twenty billion, one hundred ninety-five million, twenty-one thousand, one hundred sixty-seven".